How should I strip romex wire (12-2) for hooking up a new outlet?

Question

Wire is 12-2 indoor romex.
This is new construction so everything is open now.
I am using a single gang blue box that is extra deep.
The box has openings in the back with tabs slanted to keep wire in place.

Assume from top of the stud to the top opening in the blue box where romex feeds into is 5 feet.

Assume the romex drop is 7 feet from the top of the stud. (I left plenty extra just so I dont leave myself short.)

a)How far down from the top of the stud should the last romex staple be securing the romex wire to the stud before it enters the box?

b) At what point should the romex outter jacket (yellow) be stripped?

c)How much wire should I have sticking out of the box.(Measured from top opening to where the wire hooks to the screw terminals on the outlet?)

Any other ideas would be appreciated

Thanks


I have nailed the box's nails into the stud and have the box out a 1/2 inch to allow for the drywall.

Answer 1

There are codes that cover every question you asked.



In my state the electric code follows the NEC 2008 code book.



A - Romex is required to be secured within 12" of entry into the box



B - There should not be more than 1 1/2" of outer covering in the box (this is not strict code as much as box fill is an issue as well as question C)



C- 8" of wire should extend beyond the edge of the box (this includes the stripped portion - 3/4")



I would suggest you buy a home wiring guide book. Black and Decker publishes a good one for home owners. Also It would not hurt you to consult your local inspector very early in your project. It is better to know the codes and do the project correctly rather than have to go back and fix it later.



Make sure you properly bond your wires and your ground wire too.

Answer 2

For 110VAC better half and teenagers, you ought to use a minimum 15 amp breaker and 14/2 Rom-ex. Exception is the kitchen the place you like 12/2 and a 20 amp breaker with 2 separate circuits. in case you have 12/3, shop that for a mild that is operated from the two end of a hallway or stairwell. you may anchor the packing boxes to the concrete partitions, yet how can you attach the electrical powered cable? you prefer a minimum of a million" returned set and you will no longer get that if the furring strips are next to the concrete. i might recommend framing out the two exterior partitions additionally, which will sparkling up the situation of anchoring something. additionally, if water going to be a attention, you may desire to apply a GFCI risk-free outlet because of the fact the 1st one off the flexibility field.

Answer 3

I suggest you ask your journeyman. This is a typical apprentice question and no apprentice should be working alone or unsupervised. There is a romex stripping tool designed to do this, it should be part of your basic tool kit. As to the secure point for box entry, it should be 12" or less by NEC and secured every 4'. Read your code book. If this is a DIY, ask the AHJ in your area. Be sure to have a permit for the work.

Answer 4

Romex Stripping Tool

Answer 5

I don't think there are any codes on how far away from a box you have to staple. But I'd say at least within a foot of it. You can strip off the yellow covering as far back to the box you can. Leave as much wire as to allow yourself six inches of working room when the outlet or switch is outside of the box.